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Class 12
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Physics
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Atoms
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Bohr's Model
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Reasons for failure of Bohr model
Reasons for failure of Bohr model
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REVISE WITH CONCEPTS
Limitation of Bohr's Model
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Bohr's Model
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Limitations of Bohr's Model
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Bohr's Model of atom
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Limitations of Bohr's Atomic Model
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QUICK SUMMARY WITH STORIES
Bohr's Model of Atom
2 mins
Terms related to Bohr's Atomic Model - I
2 mins
Terms related to Bohr's Atomic Model - II
2 mins
Problems on Bohr Model.
2 mins
Bohr's Theory and Quantum Number of Orbits
3 mins
Bohr's Atomic Model and its Drawback
2 mins
Bohr's Model And Its Postulates
3 mins
Energy of Electron in nth Orbit
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Important Questions
Hydrogen atom in ground state is excited by a monochromatic radiation of
$λ=975Ao$
. Number of spectral lines in the resulting spectrum emitted will be
Medium
NEET
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Write Bohr's postulates for the hydrogen atom model.
Medium
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What is meant by 'Quantization of charge'?
Medium
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By assuming Bohr's postulates derive an expression for radius of
$n_{th}$
orbit of electron, revolving round the nucleus of hydrogen atom.
Medium
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In a Bohr's model of an atom, when an electron jumps from
$n=1$
to
$n=3$
, how much energy will be emitted or absorbed?
Hard
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>
An electron of stationary hydrogen atom passes from the fifth energy level to the ground level. The velocity that the atom of mass
$m$
acquired a result of photon emission will be :
(
$R$
is Rydberg constant and
$h$
is Planck's constant)
Medium
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The electron in a hydrogen atom makes a transition
$n_{1}→n_{2}$
, where
$n_{1}$
and
$n_{2}$
are the principal quantum numbers of the two energy states. Assume Bohr's model to be valid. The time period of the electron in the initial state is eight times that in the final state. What are the possible values of
$n_{1}$
and
$n_{2}$
?
Hard
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The ratio of the energies of the hydrogen atom in its first to second excited state is
Medium
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Write two limitations of Bohr's model.
Medium
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The ground state energy of hydrogen atom is
$−13.6eV$
. What are the kinetic and potential energies of the electron in this state?
Easy
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>